Thanks, Internet, for the 2012 Memories

On behalf of the two billion people now online, a look back at 2012, with thanks where it's due:

• To low capital-gains taxes: The low rates on profits made from investing in sometimes speculative ideas funded many years of entrepreneurial activity. Money flowed into U.S. venture capital as returns were taxed at a modest 15% rate—though this is still 15% higher than in countries with no capital gains taxes, such as South Korea and New...